In addition to the co-op feature, version 1.6 of Vampire Survivors has transitioned the game to an entirely new game engine. This change enables the development of larger features that were previously challenging to implement on the old engine. Players have reported smoother performance on the Steam Deck with the new engine. However, the game is still accessible on the old engine using the password ‘PhaserVersion2023’, although it won’t receive further updates.
